Matrix scorcher



June 14 1927. 1,632,646

J. w. FITZSIIMMONS MATRIX SCORCHER Filed Dec. 16. 1926 In wmor claims 6' W 1 1?; 57237770776;

By l Alttorney Patented June 14, 192.7. i

STATES ATENT OFFICE:

4 JAMES WILLIAM FITZSIMMONS, OF OAKLAND, CALIFORNIA.

MATRIX SCORGHER.

Application filed December 16, 1926. Serial No. 155,278.

which a moist matrix is placed, together with clampin means for maintaining the matrix in tight contact with said surface and for allowing the moisture to be driven therefrom in order to impart a substantially fixed curvature to the matrixto permit itto be more conveniently placed in position in the correspondingly shaped casting box. a

More specifically, the invention has ref? erence to a heated drum against the exterior top surface of which the moist matrix is placed, to ether with a substantially semi-' circular c amping plate hingedly mounted on this cylinder and adapted to. press the matrix firmly against the surface [and to allow the moisture to escape through the apertures to a suitable source of heat in'the interior of the casing. This operation will dry, iron out and shape the matrix to the correct curvature of a casting box. so vention will become apparent from the following description and drawing.

' In the drawings: r p

Figure l'is a side view of a scorcher constructed in accordance with the invention,

2'is an end elevation looking in the direction from right to left, i

Fig. 3 is a cross section taken approximately upon the plane of the" line 3 -3 of Fig. 1.

4o i i Referring to the drawings in detail it Will be seen that the reference character l designates a supporting stand which includes a pairof uprights composed of substantially U-shaped end frames 2 connected together by horizontal connecting bars 3. Between "the depending or vertical portions of the frame are suitably shaped connecting membars 4. The lower ends of said vertical portions of the frame are inturned as at 5 to provideattaching feet which may be suitably. securedin place. The bight portions of the frames are curved in a dished man- Other features and advantages of the in- 7 er as at 6 for reception ofthe lower corresponding-1y curved surface of the heating drum or casing7 This drum may be com.- posed of an open ended cylinder with suitable end heads. Located in the lower portion of this drum and extending through theend is an appropriate fuel burner 8 with which a disposed regulating and supply means 9 is connected. Also connected to the right hand end of the drum is an exhaust pipe 10 through which the products of combustion are allowed to escape. The

curvature of the surface of the drum is such 7 as to correspond substantially with the curvature of an ordinary casting box in which a matrix is placed when I casting plates. Hinged to one slde of this drum as .at 11 is a clamping and form plate 12 provided with This plate is. shaped to conform to the surface of the a multiplicity of apertures.

drum and a moist matrix (not shown) is adapted to be placed between itand said drum. The free end portion of the plate 12 is provided with a suitable hand rip 13.

Attention is also directed to a ba e plate 14 on the interior of the drum and disposed over the burner pipe 8 for equally distributmg the heat and to insure more efficient operation of the device. v

In order to operate the device it is only necessary to light the burner and the same is ready for use. The cover is swung up.

and the matrix is placed on top ofthe cylinder and then the cover is brought down and clamped in place by friction. This operation will dry, iron out and shape the matrix to the correct curvature of the casting box into which it is subsequently disposed for the casting operation. I

- Persons skilled in the art to which the of the improved device. Therefore, a more lengthy description is thought unnecessary. WVhlle the preferred embodiment of the invention has been shown and described, it

is to be understood that minor changes coming within the field. of, invention claimed may be resorted to I claim: A matrix scorcher comprising a frame, the top of which is dished, a drum seated in if desired. g

and supported by said dished frame top, said drum of circular cross section and having a conduit at its ends for the passage of products of combustion, a burner in the lower portion of the drum, a baffle plate of imperiorate character disposed above the burner and having lts opposite edges sup- JAMES WILLIAM FITZSIMMONS. 

